CVE-2023-24936: .NET, .NET Framework, and Visual Studio Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2023-Jun

Released

2023-06-13

Last Updated

2023-09-12

EPSS Score

1.16% (percentile: 78.6%)

FAQ

What privileges could be gained by an attacker who successfully exploited the vulnerability? An attacker who successfully exploited this vulnerability could gain administrator privileges. According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to prepare the target environment to improve exploit reliability. How could an attacker exploit this vulnerability? An attacker could exploit this vulnerability by tricking a user into opening a malicious XML file.

Affected Products (76)

Developer Tools

• Microsoft Visual Studio 2022 version 17.2
• Microsoft Visual Studio 2022 version 17.0
• Microsoft Visual Studio 2022 version 17.4
• .NET 6.0
• .NET 7.0
• Microsoft Visual Studio 2022 version 17.6
• PowerShell 7.2
• PowerShell 7.3
• Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)
• Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems
• Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems
• Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems
• Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)
• Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
• Microsoft .NET Framework 4.8 on Windows Server 2012
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems
• Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
• Microsoft .NET Framework 4.8 on Windows Server 2012 R2
• Microsoft .NET Framework 4.8 on Windows Server 2016
• Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022
• Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016
• Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation)
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022
• ... and 26 more

Security Updates (39)

• Release Notes
• Release Notes
• Release Notes
• 5027797
• 5027798
• Release Notes
• Release Notes
• 5027123
• 5027542
• 5027533
• 5027536
• 5027541
• 5027532
• 5027540
• 5027531
• 5027544
• 5027536
• 5027539
• 5027538
• 5027219
• 5027542
• 5027533
• 5027541
• 5027532
• 5027540
• 5027531
• 5027544
• 5027537
• 5027539
• 5027119
• ... and 9 more

Acknowledgments

H01 and H02 from FPT Software Cybersecurity Assurance Service with https://www.fpt-software.com/, H01 and H02 from FPT Software Cybersecurity Assurance Service with https://www.fpt-software.com/, H01 and H02 from FPT Software Cybersecurity Assurance Service with https://www.fpt-software.com/

Revision History

• 2023-06-13: Information published.
• 2023-06-29: Revised the Security Updates table to include PowerShell 7.2 and PowerShell 7.3 because these versions of PowerShell 7 are affected by this vulnerability. See https://github.com/PowerShell/Announcements/issues/42 for more information.
• 2023-07-13: In the Security Updates table, added all supported versions of all supported versions of .NET Framework, Visual Studio 2022 version 17.0, Visual Studio 2022 version 17.2, and Visual Studio 2022 version 17.4 because these products are also affected by this vulnerability. Microsoft strongly recommends that customers running any of these products install the updates to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action.
• 2023-08-18: Updated one or more CVSS scores for the affected products. This is an informational change only.
• 2023-09-12: Updated links to security updates. This is an informational change only.